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Homogeneous mixture of two or more substances.

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Fluids

Substances that flow freely, gases and liquids.

Crystalline Solid

A solid characterized by a regular, ordered arrangement of particles.

Covalent Bond

Chemical bond formed by the sharing of one or more electron pairs between two atoms.

Frasch Process

Method by which elemental sulfur is mined or extracted. Sulfur is melted with superheated water (at 170°C under high pressure) and forced to the surface of the earth as a slurry.

 

Lanthanide Contraction

A decrease in the radii of the elements following the lanthanides compared to what would be expected if there were no f-transition metals.

Electronic Transition

The transfer of an electron from one energy level to another.

Amorphous Solid

A noncrystalline solid with no well-defined ordered structure.

Solvent

The dispersing medium of a solution.

Chemical Equation

Description of a chemical reaction by placing the formulas of the reactants on the left and the formulas of products on the right of an arrow.

Diamagnetism

Weak repulsion by a magnetic field.